0035-0052 0035-0052 S0035-00522021000300089 10.35366/102187 México Mexico 00 06 2021 00 06 2021 88 3 89 92 1 2 2021 9 668484 3 4 5 6 2021 9 5 5 e590-2 7 8 Organización Mundial de la Salud 2020 9 10 2021 63 2 2 288-309 11 2021 12 2021 385 239-50 13 2021 S1473-3099 21 21 00319-4 14 2021 15 2021 21 21 S1473-3099 16 17 2021 70 18 2021 70 27 27 977-82 19 Secretaría de Salud 20